

%\begin{table}[htbp]\centering
\sisetup{parse-numbers=false, detect-all}
\begin{tabular} {S S S S S S } \toprule
 & \multicolumn{3}{c}{Main Sample Votes} &  \multicolumn{2}{c}{All Draft Votes}   \\ \cmidrule(lr){2-4}  \cmidrule(lr){5-6}  
\multicolumn{1}{l}{Congress}  &  \multicolumn{1}{c}{Votes}   &  \multicolumn{1}{c}{Pro Draft}  & \multicolumn{1}{c}{Margin}   &  \multicolumn{1}{c}{Votes} & \multicolumn{1}{c}{Margin}   \\
\multicolumn{1}{c}{} &  \multicolumn{1}{c}{(1)}   & \multicolumn{1}{c}{(2)} & \multicolumn{1}{c}{(3)} & \multicolumn{1}{c}{(4)} & \multicolumn{1}{c}{(5)}  \\
\midrule 
\addlinespace
&  \multicolumn{5}{c}{\emph{Senate}}    \\  \cmidrule(lr){2-6} 
 93  & 2 & 0.61 & 0.32 & 2 & 0.32  \\
 92  & 34 & 0.49 & 0.35 & 58 & 0.39  \\
 91  & 2 & 0.63 & 0.40 & 3 & 0.35 \\
 90  & 7 & 0.79 & 0.77 & 9 & 0.79  \\
 89  & 1 & 0.93 & 0.86 & 3 & 0.55  \\
 82  & 8 & 0.61 & 0.38 & 12 & 0.46  \\
 79  & 6 & 0.55 & 0.46 & 13 & 0.39  \\
 77  & 12 & 0.52 & 0.30 & 21 & 0.31  \\
 76  & 13 & 0.50 & 0.39 & 22 & 0.35  \\
 66  & 1 & 0.11 & 0.01 & 2 & 0.06  \\
 65  & 20 & 0.43 & 0.53 & 33 & 0.46  \\
\multicolumn{1}{l}{Total}   &        106 &        &        &        178 &              \\
\multicolumn{1}{l}{Mean}   & 9.64 & 0.56 & 0.44 & 16.18 & 0.40  \\
\multicolumn{1}{l}{Std. Dev.}   &   (10.03) &       (0.21)&       (0.23)&   (17.08) &       (0.18)  \\
\midrule 
\addlinespace
&  \multicolumn{5}{c}{\emph{House}}    \\  \cmidrule(lr){2-6} 
 92  & 10 & 0.60 & 0.34 & 11 & 0.35  \\
 91  & 2 & 0.74 & 0.47 & 2 & 0.47  \\
 90  & 2 & 0.85 & 0.70 & 2 & 0.70  \\
 89  & 1 & 0.88 & 0.77 & 1 & 0.77  \\
 88  & 1 & 0.88 & 0.77 & 1 & 0.77  \\
 82  & 2 & 0.80 & 0.60 & 3 & 0.55  \\
 79  & 2 & 0.42 & 0.03 & 9 & 0.15  \\
 77  & 5 & 0.47 & 0.28 & 8 & 0.18  \\
 76  & 4 & 0.53 & 0.15 & 5 & 0.21  \\
 65  & 5 & 0.70 & 0.49 & 12 & 0.37  \\
\multicolumn{1}{l}{Total}   &         34 &        &        &         54 &               \\
\multicolumn{1}{l}{Mean}   & 3.4 & 0.69 & 0.46 & 5.4 & 0.45  \\
\multicolumn{1}{l}{Std. Dev.}   &    (2.76) &       (0.17) &       (0.26) &   (4.25) &       (0.24)  \\
\midrule 
&  \multicolumn{5}{c}{\emph{Combined}}    \\  \cmidrule(lr){2-6} 
 \multicolumn{1}{l}{Total}   &        140 &    &    &        232 &     \\
 \multicolumn{1}{l}{Mean}   &         &   0.58 &   0.18 &         &   0.17  \\
 \multicolumn{1}{l}{Std. Dev.}  &    &       (0.49) &       (0.12)  &    &       (0.12)  \\
\bottomrule
\end{tabular}
%\end{table}



